section.section
  header.section__header
    h2.section__title Position
  div.section__content
    p dom.js 提供以下几个方法用于获 DOM 元素的位置（offsetTop、offsetLeft、scrollTop、scrollLeft、pageX 和 pageY 等）信息。
  include ./getOffset
  include ./getOffsetLeft
  include ./getOffsetTop
  include ./getPageXY
  include ./getPageX
  include ./getPageY
  include ./getDocumentScrollLeft
  include ./getDocumentScrollTop
  include ./getScroll
  include ./getScrollLeft
  include ./getScrollTop
  include ./getScrollTotal
  include ./getScrollTotalLeft
  include ./getScrollTotalTop
  include ./offset
  include ./positions
  include ./scrollTo
